I only have one key my tt... I got it like this from previus owner as he lost all the other keys... About 3 or 4 Month ago the remote control stop working when trying to open the car, so i change the batery thinking it was the reason. Unfurtunally Bateries changed and have the same problem. This is the only problem.

Could It. be the remote control? Could it be de Central Locking System? Help, Help, Help.

Would you guys help me before I start braking thigs apart.. Any Ideas on were to start..

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You probably just have to recode the fob to the alarm, detailed instuctions are on rosstech. Can also be done using vagcom, post up where you're based & perhaps a local member can offer help,rgds,paddy

my fob used to open and close the car a good 20ft away and stopped so i changed battery it still works but only from about 2ft away now i bought the battery from a local car spares place could it be an inferior battery

Yes Hoggy... Looks like when the battery went dead and I replace it the first time the remote lost comunication... Just to make sure I replace the battery again and did what u suggested.. and MAGIC... It work.. Thanks again u guys for all the help..

Now that my key remote is working back again. Would a new key purchuse online only open the doors, etc.? Can this new key work with the inmobilizer? Simple... I have only 1 key, and need a extra fully operating key.. What do I have to do to make this to happend..

Hi, It appears the only reliable & less hassle way is with Audi, as it has to be reprogammed to dashpod etc for immobiliser to work & only Audi can do that, but I believe its costs around £150. Some one will soon be along soon if I am wrong.Hoggy.

trying to buy a new key. What is the diference betwing 4D0837231A and 4D0837231M number in the back of the remote, mine is the first number, found one online with the "M" only diference. Would it work?